The discovery history Telegraph

Telegraph is a machine / device to send and receive messages from a distance. The word telegraph is often heard today, is largely an electric telegraph. Telegraph invented by an American man named Samuel FB Morse along with his assistant Alexander Bain.
Electric telegraph was first discovered by Samuel Thomas von Sömmering in 1809. Then in 1832, Baron Schilling made the first electric telegraph. Carl Friedrich Gauss and Wilhelm Weber was the first to use electric telegraph for communications equipment remains in 1833 in Göttingen. The first commercial telegraph was made by William Fothergill Cooke and marketed on the Great Western Railway in England. Telegraph was patented in England in 1837. The telegram was sent at a distance of 13 mil/21 km from Paddington station to West Drayton and started operating on April 9, 1839.

In 1843, a Scottish inventor, Alexander Bain, found a tool that can be said is a first facsimile machine. He called this discovery the "recording telegraph" (teleraf recorder). Found in Bain's telegraph was able to send pictures using electric wire. In 1855, an Italian monk, Giovanni Caselli, also makes an electric telegraph that could send a message. Caselli named this discovery "Pantelegraf". Pantelegraf has been successfully used and accepted as a telegraph line between Paris and Lyon.

An electric telegraph, the first time freely invented and patented in the United States in 1837 by Samuel F. B. Morse. His assistant, Alfred Vail, Morse code that symbolizes a letter to Morse. America's first telegraph sent by Morse on January 6, 1838 through 2 miles / 3 km of wire at Speedwell Ironworks near Morristown, New Jersey. The message read "A watchman who wait are not losers" (A patient waiter is no loser) and on 24 May 1844, he sent a message "What God has created" (What hath God wrought) of the Old Supreme Court Chamber in Building House of Representatives in Washington to Mt. Clare Depot in Baltimore. Morse / Vail telegraph quickly deployed in the next 2 decades.

Cross-Atlantic cable started to try to use in 1857, 1858, and 1865. Cable in 1957 only operated a few times. The first commercial telegraph cable that is able to cross the Atlantic ocean was completed on July 18, 1866.

Australia is the world's first bridge in October 1872 via the underwater telegraph in Darwin. This raises the news to the world. Telegraph further technological advances occur in the early 1970s, when Thomas Edison invented the "two-way telegraph with two full-duplex" (full duplex two-way telegraph) and double its capacity by finding guadruplex in 1874. Edison's U.S. patent register at the institution and successfully patented duplex telegraph on 1 September 1874.